Utah

Wyoming

Alberta

None

<p>A map of North America highlighting oil shale or tar sands areas shaded in red. The region along the boundary of Utah in the northeast along with Wyoming is shaded. The northern region of Alberta is also shaded.</p>

<p>Locations of major sedimentary rock formations and loose sands containing petroleum in North America</p>

Oil Shale or Tar Sands

North America

nature

Anthropogenic Biomes

Areas at Risk of Soil Degradation

Average Annual Precipitation

Biomes

Climate Zones

Global Mean Temperature, January

Global Mean Temperature, July

Global Surface Warming: Worst-Case Projections (NASA)

Insolation

Land Cover

Major Soil Orders

Prevailing Agricultural Practices

World Elevations